# SDR SWAA100854

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2010
- Submitted: February 17, 2010
- Operation: Air carrier
- Aircraft: N370SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 26597
- Aircraft time: 55,513 hours, 47,018 cycles
- System (JASC): [3234 · Landing Gear Selector](https://openairdocs.org/jasc/3234)
- Part: Selector Valve
- Part number: 4105DA
- Part serial: 2817
- Condition: Faulty
- Location: Lt Mlg
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA100854

## Discrepancy

LT MLG INDICATED UNSAFE (RED LIGHT) ON FINAL APPROACH.  RAN CHECKLIST/MANUAL EXTENSION OF ALL 3 GEARS WORKED NORMALLY.  REMOVED AND REPLACED LT MLG SELECTOR VALVE AND ADJUSTED LT MLG CONTROL CABLES PER MM.

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